AIR CONDITIONING SYSTEM


  1. OUTLINE


    1. Air Conditioning System


      1. An automatic air conditioning system is provided.

      2. The automatic air conditioning system uses left and right independent temperature control to enhance comfort.

  2. SPECIFICATIONS


    1. Ventilation and Heater Core

      Model Specifications
      Heater Radiator Unit Sub-assembly Type Straight Flow Aluminum-II (SFA-II)
      Size (W x H x L)

      201.5 mm x 150 mm x 27 mm

      (7.93 in. x 5.90 in. x 1.06 in.)
      Fin Pitch 1.8 mm (0.07 in.)
      Blower with Fan Motor Assembly Motor Type K70-10T
      Fan Type Semi Sirocco
      Fan Size (Dia. x H) 155 mm x 65 mm (6.10 in. x 2.56 in.)

    2. Air Conditioning

      Model Specifications
      Cooler Condenser Assembly Type Multi-Flow-IV (MF-IV) Sub-cool
      Size (W x H x L)

      666 mm x 255 mm x 22 mm

      (26.2 in. x 10.0 in. x 0.9 in.)
      Fin Pitch 2.7 mm (0.1 in.)
      Cooler Compressor Assembly ES27C
      No. 1 Cooler Evaporator Sub-assembly Motor Type Revolutionary Super-slim Structure (RS)
      Size (W x H x L)

      226.1 mm x 241 mm x 38 mm

      (8.90 in. x 9.49 in. x 1.50 in.)
      Fin Pitch 3.0 mm (0.11 in.)
      Refrigerant Type

      HFC-134a*1

      HFO-1234yf*2

      *1: Models using HFC-134a refrigerant

      *2: Models using HFO-1234yf refrigerant

  3. MAIN FEATURES


    1. The air conditioning system has the following features:

      High Performance

      • The neural network control is used so passengers can finely control the air conditioning for maximum comfort.

      • A pollen-removal type clean air filter, which has a pollen-removal effect, is used.

      • The manual blower control has 7 steps and automatic blower control has 31 steps to allow precise control.

      • The system contains a PTC heater (quick heater assembly) that heats the air that has passed through the heater radiator unit sub-assembly to ensure proper heater performance.
      Lightweight

      • A bus connector with a built-in IC is used in a lightweight wire harness design to allow a reduced number of wires.

      • The use of this connector means that pulse pattern type servo motors can be used.
      Compact A blower motor with a built-in blower motor controller is used to achieve a compact construction.
      Others

      The following parts are used to ensure high cooling performance while achieving a compact and lightweight construction:


      • Semi-center Location Air Conditioning Unit

      • Revolutionary Super-slim Structure (RS) Evaporator

      • Straight Flow Aluminum-II (SFA-II) Heater Radiator

      • ES27C Type Electric Inverter Compressor

      • Multi-Flow-IV (MF-IV) Sub-cool Condenser

  4. PRECAUTION


    1. Precaution for Refrigerant HFO-1234yf


      1. Always use HFO-1234yf as the refrigerant.

        CAUTION:


        • Do not charge the system with refrigerant near open flames, as HFO-1234yf is combustible.

        • When charging the system with refrigerant, make sure the area is well ventilated (especially be careful in areas where the gas can easily accumulate such as under lifts and in garage pits, as the gas is heavier than air).

        • Follow any local regulations regarding combustible gases.

        • Be sure to use a refrigerant recovery unit that is compatible with HFO-1234yf systems.

        Tech Tips

        The shape of the service port for refrigerant charging has an exclusive design conforming to international standards for HFO-1234yf to prevent improper refrigerant charging.

    2. Compressor Oil


      1. Always use ND-OIL 12 as the compressor oil.

      2. When parts of the air conditioning system are removed, quickly block off any areas that are exposed to the outside air with plugs, vinyl tape, etc., as the oil used for HFO-1234yf systems absorbs moisture easily.

      3. Do not allow the compressor oil to spray, as the oil used for HFO-1234yf systems has harmful effects on acrylic resins.